2791597228 has 36 divisors (see below), whose sum is σ = 5687441760. Its totient is φ = 1195441632.

The previous prime is 2791597223. The next prime is 2791597261. The reversal of 2791597228 is 8227951972.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2791597223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275101 + ... + 285067.

Almost surely, 2^2791597228 is an apocalyptic number.

2791597228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2791597228 is an abundant number, since it is smaller than the sum of its proper divisors (2895844532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2791597228 is a wasteful number, since it uses less digits than its factorization.

2791597228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414 (or 11405 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 52.

The square root of 2791597228 is about 52835.5678307710. The cubic root of 2791597228 is about 1408.0484087986.

The spelling of 2791597228 in words is "two billion, seven hundred ninety-one million, five hundred ninety-seven thousand, two hundred twenty-eight".